Home / 352,085.12-485,864.35-208,759.40

Finding the Fourth Proportional to 352,085.12, 485,864.35 and 208,759.40

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Solution

The fourth proportional to 352,085.12, 485,864.35 and 208,759.40 is: 288,080.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,085.12 : 485,864.35 = 208,759.40 : x
  2. Step 2: Convert to fraction form
    352,085.12/485,864.35 = 208,759.40/x
  3. Step 3: Cross multiply
    352,085.12x = 485,864.35 × 208,759.40
  4. Step 4: Simplify right side
    352,085.12x = 101,428,747,236.17
  5. Step 5: Solve for x
    x = 101,428,747,236.17/352,085.12
  6. Step 6: Final answer
    x = 288,080.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.